Hi guys!
Did someone of you noticed some problems with using two sim-cards? When i install the second sim card i am constantly getting problems with loosing cellular network connection. There is something strange going on...I tested the new sim card on the other phone and its working normally (so its not the problem with the sim card). Is there maybe a solution to this problem?
Thanks!
Hi guys! As a last resort i did a factory reset of the phone. Its all working now as it should! Strange. Must have been some software bug.
I have been using dual Sims since Nov 2019. I don't have any problems with it so far.
Dual SIM not reachable
Yes, I have constant problems, and I think it's since April or May update.
I use two sims, and sim A constantly keeps "telling" the caller, that "The user is in another call and can't be reached". Then I get an sms with "missed call".
Outgoing calls take lots of seconds to connect.
I've tried shifting the two sims, problem with the same (!) sim card. You'd think this is a sim A problem.... I got a new sim from the "A" operator. Same problem.
Using just one sim in the phone, everything works well, regardless of which, even sim A works fine.
In any phone, sim A works fine by itself. There's something with the software or some setting in the Xiaomi that messes this up.
Support at operator blames the phone.
Support at Xiaomi blames the sim.
Related
Hi, I recently got an Infinix HOT 3 LTE. It's a really great phone, but I have a problem with it, my 3G SIM card isn't working properly.
When I insert it and start the phone, the card is detected, I enter my PIN code, then when I try to make a phone call it says "Cellular network not available". I tried switching the SIM card slots, both didn't work for my card. Then I tried to change the network provider manually and all and I also tried changing other cellular network options over and over again but nothing worked, I also tried switching airplane mode on and off. I got frustrated with this problem and I decided to factory reset my phone, but the problem was still there. After that I tried using someone else's 4G SIM card, and it worked, so there's no problem with my phone or SIM slots. My 3G SIM card is fine I think, it works on my old phone, as well as others.
Please help if you can.
atkinss said:
Hi, I recently got an Infinix HOT 3 LTE. It's a really great phone, but I have a problem with it, my 3G SIM card isn't working properly.
When I insert it and start the phone, the card is detected, I enter my PIN code, then when I try to make a phone call it says "Cellular network not available". I tried switching the SIM card slots, both didn't work for my card. Then I tried to change the network provider manually and all and I also tried changing other cellular network options over and over again but nothing worked, I also tried switching airplane mode on and off. I got frustrated with this problem and I decided to factory reset my phone, but the problem was still there. After that I tried using someone else's 4G SIM card, and it worked, so there's no problem with my phone or SIM slots. My 3G SIM card is fine I think, it works on my old phone, as well as others.
Please help if you can.
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Greetings and welcome to assist. Are you sure the phone is compatible with your carriers bands? If you are sure try asking your network provider for a new sim
Good Luck
Sawdoctor
a few days ago I switched from cm to AEX 7.1.2 on my moto g. Whether that has anything to do with it I don't know.
Anyway last night the phone was working fine then this morning I see that the cell network is disconnected and the phone doesn't see the simcard. However when I put in another simcard from a different network it works normally. I switch back to my sim and it works for about 20 seconds where I can make a call or text then it shuts down again and dowsn't recognize the sim then does again once I have switched the sims but only for 20 seconds. I don't understand what is happening to the phone and why it is doing this. I need help. I have tried picking different network modes from the list after inserting this code #*#*4636#*#* nothing has worked so far. I haven't systematically gone through each one at a time yet and the list is quite long. I haven't seen a list of modes that long before there are over 10 of them from auto prl to scdma etc... Some of them I have never heard of like the scdma one. wif and bluetooth are working ok if that means anything. Thanks for any help
Also when I go into settings the network section is greyed out and under prefered network type it says Invalid Network Mode (-1) Ignore. I only tried changing the modes when this problem arose my changing these modes was not the cause
i've had similar issues, when i skipped using mobile data for a long time, my non-data SIM would dropout intermittently. i changed SIM slots didn't solve it either. other SIM was fine in either slot. just before replacing what i thought was a faulty SIM, without turning mobile data on, i just set the problematic SIM for data. that solved mys issue. however, running mobile data on back on the original setting didnt cause any more issues either.
I was traveling to and from US and India. 2 Days back when I entered London airport for US, my mobile did not show any signal what so ever. It was no service. It was working fine when i boarded the flight in US.
Now following things I have tried according to my knowledge
1. I tried disabling the sim card, changing from 2g-3g- 4g. No improvements.
2. I went to menu by *#*#4636#*#*, and trying radio on and radio off. Nothing
3. I suspected that antenna is damanged and it hardware problem.
4. But then this wired thing happend, while playing around when both the sim are active, I turn of the sim one, the mobile data is switched back to second sim. Then when i again switch back the sim 1, it is automatically configured for 2g. It gets signal, I can make calls and it works good. Moment I switch the mobile data to that sim the network vanishes and back to no service/emergency calls.
5. I figured that there is some problem with the sim, so I inserted that sim into old samsung grand mobile which 3G phone. It works flawlessly.
6. Tried other sims in the moto G, 4g dosent work for some sim cards.
7. By reading on I found that lot of people have this problem and have solved it by flashing firmware. I tried that too. Tried stock rom, new osprey 7.* Nothing seems to be working.
Any thoughts and comments are welcome. I am kind of frustrated by this small bug. Might be lapse on motolora part. If someone is still active in this community please help, reply.
Hi
I'm having a strange problem with my new A51, with two SIM cards in it.
After an indeterminate time the phone disconnects from cellular network.
It still shows on to the both cards the signal strength, but the phone no longer receives calls or has internet access throw cellular network.
And if I call any of the SIM card numbers from another phone, I get a network message saying the phone is disconnected.
All other functions on the phone seams to be ok. Turning wifi on and off has no effect in reconnecting to the cellular network.
But... If I try to call from A51 to any other number, the phone reregisters on cell network, the call is done and from that point on, all goes to normal. I can receive calls again and access the internet using the cellular network...
I went to the store were I bought it, and the gave me another one, but with the exact same problem.
So I believe is not a hardware problem.
I believe now that It could be a SIM problem, on one or both SIMS, which is odd
A software problem on A51 the need's to be patched, which is odd because it has effect on the most basic feature of the phone, which is receiving calls...
A strange behavior of the phone with my cellular service provider, which is odd too...
I'm trying now with only one SIM to see if the problems happens too...
Can any one suggest any other test or debug to try to clarify this issue ?
Thanks
antoniomch said:
Hi
I'm having a strange problem with my new A51, with two SIM cards in it.
After an indeterminate time the phone disconnects from cellular network.
It still shows on to the both cards the signal strength, but the phone no longer receives calls or has internet access throw cellular network.
And if I call any of the SIM card numbers from another phone, I get a network message saying the phone is disconnected.
All other functions on the phone seams to be ok. Turning wifi on and off has no effect in reconnecting to the cellular network.
But... If I try to call from A51 to any other number, the phone reregisters on cell network, the call is done and from that point on, all goes to normal. I can receive calls again and access the internet using the cellular network...
I went to the store were I bought it, and the gave me another one, but with the exact same problem.
So I believe is not a hardware problem.
I believe now that It could be a SIM problem, on one or both SIMS, which is odd
A software problem on A51 the need's to be patched, which is odd because it has effect on the most basic feature of the phone, which is receiving calls...
A strange behavior of the phone with my cellular service provider, which is odd too...
I'm trying now with only one SIM to see if the problems happens too...
Can any one suggest any other test or debug to try to clarify this issue ?
Thanks
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Click to collapse
My wife have exact same issue with single sim.
Hi guy. On my note 20 ultra, sim1 stopped working. I thought was network issues but it wasn't. When I put on sim slot 2 it works, when I change sims around sim 1 won't register to a network. If I activate wifi calling, I can make calls from that sim. I have even check status of my imei, and is not blacklisted. (I have wiped cache partition, I have reset network settings, I have rebooted, I have deactivated Sim tray and reactivated again) have anyone experienced this issue?
something for Samsung technical support to look into
specia1one said:
Hi guy. On my note 20 ultra, sim1 stopped working. I thought was network issues but it wasn't. When I put on sim slot 2 it works, when I change sims around sim 1 won't register to a network. If I activate wifi calling, I can make calls from that sim. I have even check status of my imei, and is not blacklisted. (I have wiped cache partition, I have reset network settings, I have rebooted, I have deactivated Sim tray and reactivated again) have anyone experienced this issue?
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Click to collapse
I think im having this same issue on my n20u u1 version. just started yesterday.